solar bag

Full of Hot Air

sb118dm.jpg

At the end of April 2009, the Explorers investigated the properties of density, using what was surely one of the strangest contraptions to ever appear in (and above) their schoolyard.

As everyone knows, a hot air balloon rises because of…well, hot air. No helium or other “trick” is used, just the properties of air itself. How does this work? It all has to do with density.

Current weather

OH - Dayton / Wright-Patterson Air Force Base

Overcast
  • Overcast
  • Temperature: 30.2 °F / -1 °C
  • Wind: West-Southwest, 8.1 mph
  • Pressure: 1023 hPa
  • Rel. Humidity: 74 %
  • Visibility: 16.1 km
Reported on:
Thu, 02/09/2012 - 22:55